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HP Designjet Z3100 Photo Printer Series - Turn printer on and off

note:

The printer is Energy Star compliant and can be left
powered on without wasting energy. Leaving it on improves response time and
overall system reliability. When the printer has not been used for a certain
period of time (30 minutes by default), it saves power by going into sleep
mode. However, any interaction with the printer's front-panel display returns
it to active mode, and it can resume printing immediately.

note:

In sleep mode, the printer wakes up from time to
time to do maintenance service to the printheads. This avoids the need of
doing long preparation after long idle periods.

The printer has three levels of power consumption.

Plugged in: the power cord is plugged into
the back of the printer

Switched on: the switch at the back of the
printer is in the on position

Powered on: the Power key
on the front panel shows a green light

If you wish to turn the printer on or off or reset the
printer, the normal and recommended method is to use the Power key
on the front panel.

Figure : Front panel power key

However, if you plan to store the printer indefinitely
or the Power key does not seem
to work, you are recommended to power it off using the Power key,
and then also switch off the power switch at the rear.

Figure : Rear power switch

To turn back on, use the power switch at the rear.

When the printer is powered back on, it takes about three
minutes to initialize and check and prepare the printheads. Preparing the
printheads takes about one minute and 15 seconds. However, if the printer
has been off for six weeks or more, preparing the printheads could take up
to 45 minutes.

note:

It is strongly recommended to leave the printer powered
on or in sleep mode to avoid wasting ink and time.